本文選題：海峽暖水 + 閩浙沿岸水��； 參考：《熱帶海洋學(xué)報(bào)》2016年03期

【摘要】：依據(jù)2009年冬季、2010年春季和夏季在南日列島西南部海區(qū)3個(gè)航次的漁業(yè)資源綜合調(diào)查資料,通過對(duì)南日列島西南部海區(qū)魚類資源密度及分布特征、體長、體重、幼體比、優(yōu)勢種、相對(duì)重要性指數(shù)以及優(yōu)勢種對(duì)魚類總數(shù)量的貢獻(xiàn),討論了南日列島西南部海區(qū)魚類數(shù)量變化及其與水團(tuán)變化之間的關(guān)系。結(jié)果表明:春、夏、冬3季魚類重量密度分別為601.26kg·km~(-2)、2599.60kg·km~(-2)和730.36kg·km~(-2);尾數(shù)密度分別為17.3×10~3尾·km~(-2)、255.00×10~3尾·km~(-2)和22.6×10~3尾·km~(-2);平均體長、體重和幼體比分別在春季、冬季和夏季為最高,分別為14.95cm、49.76g和81.72%。春季主要由產(chǎn)卵群體組成,多為規(guī)格較大的成魚;夏季由索餌群體組成,多為規(guī)格較小的幼魚。魚類數(shù)量的平面分布與福建近海不同季節(jié)水團(tuán)的變化有關(guān),春季魚類聚集在閩浙沿岸水和海峽暖水交匯的外側(cè)海域,夏季魚類多聚集在營養(yǎng)鹽豐富,沿岸流控制的近海海域。各季節(jié)魚類數(shù)量分布特征與優(yōu)勢種分布基本一致。
[Abstract]:Based on the fishery resources survey data of three voyages in the southwest sea area of the South Japan Islands in winter, spring and summer of 2009, the density and distribution of fish resources, length, body weight, larval ratio and dominant species of fish resources in the southwest sea area of the South Japan archipelago were studied. The relative importance index (RMI) and the contribution of dominant species to the total fish population are discussed. The relationship between the fish population change and the water mass variation in the southwestern sea area of the South Japan Islands is discussed. The results showed that the weight densities of fish in spring, summer and winter were 2599.60kg / kg 601.26kg kmm-1 ~ (-2) and 730.36kg kmmc-2 ~ (-2), respectively, and the Mantissa densities were 17.3 脳 10 ~ (3), 255.00 脳 10 ~ (3) and 22.6 脳 10 ~ (3), respectively, and the average body length, body weight and larval ratio were the highest in spring, winter and summer, respectively, and were 14.95 cm ~ (49.76 g) and 81.72%, respectively, in spring, winter and summer, respectively, with the following results: (1) the weight density of fish in spring, summer and summer was 255.00 脳 10 ~ (3) and 22.6 脳 10 ~ (3), respectively, and the average body length, body weight and larval ratio were the highest, with the highest values in spring, winter and summer respectively. Spring is mainly composed of spawning population, most of which are adults with larger size, and summer is composed of baited population, mostly young fish with smaller size. The horizontal distribution of fish population is related to the variation of water masses in different seasons in Fujian coastal waters. In spring, the fishes are concentrated in the outer sea area where the coastal waters of Fujian and Zhejiang provinces meet with the warm water of the Strait, and the fishes in summer are mostly concentrated in the coastal waters with abundant nutrients and controlled coastal currents. The distribution characteristics of fish quantity in different seasons are basically consistent with the distribution of dominant species.
【作者單位】： 中國水產(chǎn)科學(xué)研究院東海水產(chǎn)研究所農(nóng)業(yè)部海洋與河口漁業(yè)重點(diǎn)開放實(shí)驗(yàn)室;上海海洋大學(xué)海洋科學(xué)學(xué)院;
【基金】：國家自然科學(xué)基金項(xiàng)目(41176131) 國家重點(diǎn)基礎(chǔ)研究發(fā)展計(jì)劃(“973”)項(xiàng)目(2010CB428705)~~
【分類號(hào)】：S932;P731.16

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